Mainframe z/VM & Linux

CTG • Phoenix, AZ • 3h ago

CTG is seeking to fill a Mainframe z/VM & Linux Systems Programmer position for our client. Responsible for administering, supporting, and optimizing IBM z/VM hypervisor environments and Linux on IBM Z (z/Linux) systems. This role focuses on virtualization management, Linux workload hosting, performance tuning, storage/network integration, and maintaining highly available enterprise workloads on IBM Z infrastructure.

Location: Phoenix, AZ metro area (Hybrid working model)

Duration: 6 months with option to convert after 6 months

Citizenship Requirements: USC, Permanent Resident, or Other EAD holders only (no visa dependent candidates)

Key Responsibilities

Administer and maintain IBM z/VM hypervisor environments.

Provision, configure, and support Linux on IBM Z (z/Linux) guest systems.

Manage virtual machines, system resources (CPU, memory, I/O), and workload allocation.

Perform performance monitoring, tuning, and capacity planning across z/VM and Linux workloads.

Troubleshoot issues across z/VM, Linux (RHEL, SUSE, Ubuntu on Z), storage (DASD, SAN, FCP), and networking (HiperSockets, OSA, TCP/IP).

Implement system patching, upgrades, and lifecycle management.

Support backup, recovery, high availability, and disaster recovery processes.

Configure virtual networking, storage pools, and guest provisioning.

Develop and maintain automation scripts using Bash, Python, REXX, or shell scripting.

Collaborate with storage, network, security, and z/OS teams.

Support security and compliance controls, including RACF integration.

Participate in on-call rotation and production support escalation.

Maintain technical documentation, standards, and operational runbooks.

Required Skills

IBM z/VM administration and virtualization expertise

Linux on IBM Z (z/Linux) system administration

Enterprise Linux experience (RHEL, SUSE, Ubuntu on Z)

Strong understanding of DASD, SAN, FCP, HiperSockets, OSA, TCP/IP

Performance tuning and capacity planning experience

Scripting/automation: Bash, Python, REXX, or shell scripting

Backup, DR, and high availability concepts

Security integration experience (RACF preferred)

Strong troubleshooting and analytical skills

Experience

5+ years of experience with IBM z/VM and Linux on IBM Z environments

Experience in enterprise-scale Linux systems administration

Experience supporting production mainframe infrastructure

Education

Bachelor's degree in Computer Science, Information Technology, Engineering, or related field preferred

Equivalent combination of education and experience accepted

Excellent verbal and written English communication skills and the ability to interact professionally with a diverse group are required.

CTG does not accept unsolicited resumes from headhunters, recruitment agencies, or fee based recruitment services for this role.

To Apply:

To be considered, please apply directly to this requisition using the link provided. Kindly forward this to any other interested parties. Thank you!

About CTG

CTG, a Cegeka company, delivers IT and business solutions that enhance clients' digital agility, empowering them to seize new opportunities and overcome any challenge. Backed by more than 60 years' experience and a commitment to being a reliable, results-driven partner, we work shoulder to shoulder with clients to shape digital together. Our vision is to be an indispensable partner to our clients and the preferred career destination for digital and technology experts. With more than 9,000 team members in over 15 countries, we combine global expertise with local insight to deliver innovative solutions. We operate across the Americas, Europe, and India, working with over 3,000 clients in many of today's highest-growth industries.

Together, we shape what's next-working shoulder to shoulder to deliver impactful solutions for our clients and society. Our culture is built by the people who work at CTG, the values we hold, and the actions we take. It's a living, breathing thing that is renewed every day through the ways we engage with each other, our clients, and our communities. At CTG, you'll find a workplace where you are encouraged to grow, supported in your ambitions, and empowered to shape your own career journey. For more information, visit www.ctg.com .

CTG will consider for employment all qualified applicants including those with criminal histories in a manner consistent with the requirements of all applicable local, state, and federal laws.

CTG is an Equal Opportunity Employer. CTG will assure equal opportunity and consideration to all applicants and employees in recruitment, selection, placement, training, benefits, compensation, promotion, transfer, and release of individuals without regard to race, creed, religion, color, national origin, sex, sexual orientation, gender identity and gender expression, age, disability, marital or veteran status, citizenship status, or any other discriminatory factors as required by law. CTG is fully committed to promoting employment opportunities for members of protected classes.

CTG

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